Two charges, so far apart, with a 3rd placed in the middle to find the minimum force
11. -/1 points My Notes Two charges q1-3 μC, q2 =-30 μC, are L = 19 cm apart. A third charge is to be placed on the line between the two charges. How far from Q1 should the third charge be placed so that the net electric force on the third charge is minimized? cm
Two charges, q1 and q2, are placed a distance D apart (assume they are point charges). A proton is then placed on the line that passes through both charges, and the net force exerted on the proton is zero. How far is the proton from q1?
Point charges q1=50μC and q2=−25μC are placed 1.0 m apart. What is the force on a third charge q3=20μC. Where must q3 of the preceding problem be placed so that the net force on it is zero?
can you explain that to me ? Two electric charges are placed on the x=axis. One (q1= + 8muC) is located at the origin, and the second charge (q2=-4muC) is located at x=1.25m. A third charge (q3=+20muC) is placed at x=2m. What is the net electric force on charge q3? What is the net electric field experienced by charge q3? In which region of the x-axis should we place q3 so that the net electric force on it equals zero?...
Two charges, 91 = +10 nC and q2 =-30 nC are 20 cm apart. Where (other than infinity) can a proton be placed so as to experience no net force? O left of charge 91 o on the line joining q1 and q2 O right of charge 92 O at a point P on the right bisector of the line joining the two charges
Charge is placed on two conducting spheres that are very far apart and connected by a long thin wire. The radius of the smaller sphere is 5 cm and that of the larger sphere is 12 cm. The electric field at the surface of the larger sphere is 800 kV/m. Find the surface charge density on each sphere. 12 cm sphere in µC/m2.............................. 5 cm sphere in µC/m2...................................
4. Two point charges arranged horizontally. A charge, q1=-25.0 µC, is placed at x=0.220 m and a second charge q2 placed at x=0.340 m. A third point charge, q3=+8.40 µC is placed at the origin. The net electrostatic force on q2 is +27.0 N xˆ . What is the charge on q2?
Charge is placed on two conducting spheres that are very far apart and connected by a long thin wire. The radius of the smaller sphere is 5 cm and that of the larger sphere is 12 cm. The electric field at the surface of the larger sphere is 490 kV/m. Find the surface charge density on each sphere. 12 cm sphere ? µC/m^2 5 cm sphere ? µC/m^2
7. Two charges have been placed as shown, with Q1 = 375 uC and Q2 = 260 4C. Where should a third charge, Q3 = -285 uC, be placed so that there is no net electric field at point a? [ans. (4.25 cm, 2.66 cm)] E = 0 Q1 y (cm) 1 2 3 4 5 6 9 10 11 12 13 14 7 8 (cm)
Point charges of 6.00 µC and −3.50 µC are placed 0.150 m apart. (Assume the negative charge is located to the right of the positive charge. Include the sign of the value in your answers.) (a) Where can a third charge be placed so that the net force on it is zero? ______ m to the right of the −3.50 µC charge (b) What if both charges are positive? ______ m to the right of the 3.50 µC charge